Hershey thiab Chase ua lawv cov kev sim, tom qab ntawd hu ua Hershey-Chase thwmsim, ntawm cov kab mob uas kis kab mob, kuj hu ua bacteriophages. Cov kev sim ua raws li kaum xyoo ntawm cov kws tshawb fawb 'kev tsis ntseeg txog seb cov khoom siv caj ces puas muaj protein ntau lossis DNA.
Leej twg kawm tus kab mob bacteriophage?
Bacteriophage (cov kab mob kab mob) tau tshawb pom ntawm nws tus kheej los ntawm ob tus kws tshawb fawb, Frederick Twort thiab Felix d'Herelle, hauv 1915 thiab 1917. D'Herelle tau mus ua haujlwm hauv -Txoj kev kawm tob ntawm cov kab mob no, suav nrog kev rov ua dua thiab hloov kho, thiab nws tau thov kom lawv siv tau los kho cov kab mob.
Alfred Hershey ua haujlwm nrog leej twg?
Concept 18 Cov kab mob thiab kab mob muaj DNA ib yam nkaus. Joshua Lederberg tau tshawb pom cov kab mob sib xyaw ua ke thiab pib tshawb fawb tshiab. Alfred Hershey yog ib tug kws tshuaj ntsuam geneticist uas, nrog nws tus pab tshawb fawb, Martha Chase, tau ua ib qho kev sim nto moo tshaj plaws hauv molecular biology.
Vim li cas Hershey thiab Chase siv bacteriophages?
Bacteriophages tau siv vim lawv muaj me ntsis ntau dua DNA thiab proteinAlfred Hershey thiab Martha Chase tau siv cov kab mob bacteriophages vim lawv txuas rau DNA. Hauv ib pawg, cov phages (luv luv rau bacteriophages) tau loj hlob nrog cov xov tooj cua phosphorous, uas txhais tau hais tias nws tau muab tso rau hauv phage DNA.
Leej twg qhia phage?
The Hershey-Chase kev sim, uas pom tau tias cov khoom siv caj ces ntawm phage yog DNA, tsis yog protein. Qhov kev sim siv ob pawg ntawm T2 bacteriophages.
